[Anon123]

A frog's stomach sits toward the left side of the abdominal cavity; the food item might be taking up more space than usual.

I'm assuming this results in the frog's left side looking slightly bigger than it's right after a meal?

 

[Anon123]

That's my speculation

Sorry, meant to write 'in general' as opposed to 'after a meal' and basically asking a question you've answered.